Water-purifier.



PATENTED NOV. 8, 1904. D. N. BAXTER. 7

WATER PURIFIER.

APPLICATION FILED FEB.11, 904.

2 SHEETS-SHEET 1.

N0 MODEL.

19i memes WYW W No. 774,372. PATENTED NOV. 8, 1904.

D. N. BAXTER.-

WATER PURIPIER.

APPLICATION FILED FEE-l1 1904. N0 MODEL. 2 SHEETS-SHEET 2.

Slnuanfoz Q vi moses UNITED STATES Patented November 8, 1904.

PATENT OFFICE.

DANIEL N. BAXTER, OF WIOHITA, KANSAS, ASSIGNOR OF ONE-HALF TO WV. G.HOUSER, OF WIOHITA, KANSAS.

WATER-PURIFIER.

SPECIFICATION forming part of Letters Patent No. 774,372, dated November8, 1904.

Application filed February 11, 1904. Serial No. 193,171. (No model.)

To a mil/out 71!; may concern:

Be it known that I, DANIEL N. BAXTER, a citizen of the United States,residing atVVichita, in the county of Sedgwick and State of Kansas, haveinvented certain new and useful Improvements in Water-Purifiers forBoilers, of which the following is a specification.

This invention is designed to provide novel means for cooperation with asteam-boiler or like contrivance for heating liquid either for motive orheating application for purifying the water and removing all foreignmatter that would tend to produce scale, incrustation, or cause foamingof the water during the process of ebullition.

In boilers, whether for generating steam or designed solely for heatingpurposes, the level of the water is not always uniform, and there areextreme points commonly designated as high water and low water, and itis the purpose of this invention to provide a cleaner that will operatesuccessfully when the level of the water corresponds with either one ofthe extreme positions. For this purpose there are two well-definedcircuits for maintaining circulation of the water, independent pipesbeing devised and complemental drums or sediment-chambers provided. Acup or receptacle forms a part of the purifier and is adapted to receiveoil or other means for supplying to the water a medium which willfacilitate the precipitation of foreign matter and in a measure reducethe foaming incidental to ebullition.

The invention consists of the novel features, details of construct-ion,and combinations of parts, which hereinafter will be more particularlyset forth, illustrated, and finally claimed.

In the drawings hereto attached and forming a part of the specification,Figure l is a perspective view of a steam-boiler of the 10- comotivetype having a water-purifier embodying the invention in position. Fig. 2is a side view of the parts shown in Fig. 1. Fig. 3 is a transversesection on the line XX of Fig. 2 looking to the front, the lower portionof the furnace being broken away.

' Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

It is to be understood that it is contemplated to apply the invention toall types, styles, and varieties of boilers, whether for heating watersimply or for converting the water into steam. The purifier may bearranged with reference to the boiler as found most convenient andadvantageous, according to the style of the boiler and the location.Inasmuch as devices of this character are most generally applied tolocomotive-boilers, the purifier is illustrated in this connection inthe present drawings. The purifier comprises the drums orsediment-chambers 1 and 2, preferably arranged the one above the otherin horizontal position and connected near their ends by short pipes 8.The lower drum or sediment-chamber by reason of its location acts as acollector or accumulator for contain ing a quantity of precipitant,which is blown off at intervals through the valved pipe 4:, applied tothe lowest point of the drum. The upper drum or chamber 1 is connected,by means of the valved pipe 5, with the steamdome 6 of the boiler, andwhen it is required to clear the drum or chamber 2 of all accumulationthe blow-01f 4 is opened and the valve of the steam-pipe 5 turned so asto permit unobstructed passage of the steam into the chamber 1, thevalves of the remaining pipes being closed. Hence the pressure of thesteam will clear the chambers or drums and insure the forcible ejectionof all mud and other matter through the blow-off 4.

A valved inflow-pipe 7 connects the upper portion of the drum or chamber1 with the boiler at a point corresponding to the highwater mark, and asimilar valved pipe 8 connects the upper portion of the drum or chamber2 with the boiler at a point correspond ing approximately to thelow-water level. The valved pipe 9 connects the upper portion of thedrum or chamberl with the boiler at or near its lowest point, and asimilar valved pipe 10 connects the drum or chamber 1 at a point betweenits upper and lower portions with the lowest portion ofthe boiler. Thevalved pipes 7 and 9 constitute one circuit and correspond to thehigh-water mark. The pipes 8 and 10 form the second circuit andcorrespond to the low-water mark or level. WVhen the water is at thehigh-water mark in the boiler, it passes from said boiler through thepipe 7 into the drum or chamber 1 and through pipe 9 back into theboiler. The water in its passage through the drum or chamber 1 isrelieved of mud, mineral, and other foreign matter which usually tendsto produce scale and incrustation in the boiler and collects in the drumor chamber 2, passing from the drum 1 through the pipes 3 into saidchamber 2. Obviously a small proportion of the water will pass throughthe valved pipe 8, chamber 2, and valved pipe 10; but the circulation inthis direction is comparatively small when the quantity of water passingthrough the pipes7 and 9 is considered. When the water in the boiler islow, the circulation is through the low-water circuit, the water passingfrom the boiler through the valved pipe 8 into the chamber 2, fromthence through the pipe 3 into the chamber 1, and from the latterthrough the valved pipe 10 back into the boiler. In this circulation ofthe water the latter requires a longer time to pass through the twochambers and. the pipe 3. Hence the tendency for precipitation of theforeign matter is materially increased.

A cup or vessel 11 is connected to the upper portion of the chamber ordrum 1 and is primarily designed to receive the oil, which being addedto the water in minute quantity has a beneficial result in preventingfoaming and in effecting separation of the foreign matter. However,instead of oil any agent may be placed in the cup or receptacle whichexperiment may determine as having a reactionary effect upon the watereither to neutralize mineral, carbonaceous, or other foreign matter. Thepipe or other connection between the receptacle 11 and the drum 1 isprovided with a valve to admit of regulating the supply of the agent tothe water either at determinate intervals or continuously a drop at atime.

While it is preferred to arrange both drums on the same side of theboiler, nevertheless it is contemplated within the purview of theinvention to dispose the same so that one drum may be upon one side andthe other on the opposite side of the boiler, the connections andcircuits being substantially the same. I/Vhen thus arranged, each drumwill be provided with a blow-ofi'.

The valved pipes 9 and 10 constitute the outflow or return pipes, andtheir lower ends are branched and connected to the corners of theboiler, so as to insure an equal circulation of the water at both sidesof the boiler.

boiler and the inflow of the second circuit corresponding to thelow-water mark of the water in said boiler, substantially as set forth.

2. In a water-purifier for boilers, the com bination of an upper and alower drum or chamber in communication, the lower drum being providedwith a blow-off and the upper drum having connection with thesteam-space of the boiler, valved pipes connecting the upper portion ofthe upper drum with, respectively, the upper and lower portions of theboiler, the inflow-pipe joining the boiler at a point corresponding tothe high-water mark, a valved pipe connecting the upper portion of thelower drum with the boiler at a point corresponding to the low-watermarlnand a valved pipe connecting the upper drum at a point between theupper and lower portions with the lower portion of the boiler,substantially as set forth.

3. In a water-purifier for boilers, the combination of complementarydrums or chambers arranged the one above the other and in communication,a blow-off applied to the b0ttom portion of the lower drum, a valvedpipe connecting the top portion of the upper drum with the steam-dome ofthe boiler, and valved pipes connecting the drum with, respectively, theupper and lower portions of the boiler, the inflow-pipes of therespective drums connecting with the boiler at points corresponding withthe high and low water marks, respectively, substantially as specified.

1. In combination with a boiler, a purifier comprising upper and lowerdrums in communication, a blow-off applied to the lower drum, a valvedpipe connecting the upper drum with the steam-space of the boiler,valved pipes connecting the upper portion of the respective drums withthe boiler at points corresponding, respectively, with the high and lowwater marks, other valved pipes connecting the upper drum with the lowerportion of the boiler, one of the latter pipes connecting with the upperportion and the other pipe with the intermediate portion of said upperdrum, and a vessel fitted to the upper drum for containing an agent tobe added to the water .in circulation, substantially as set forth.

In testimony whereof I afiiX my signature in presence of two witnesses.

DANIEL N. BAX'IER. [1,. s]

Witnesses:

WILLIAM G. Housnn, KATHERINE BELL.

IIO

